Santi, Arfa Novia, Muhammadi Muhammadi, Adrias Adrias, and Rayendra Rayendra. “Development of Interactive Teaching Materials Based on Problem-Based Learning (PBL) in Indonesian Language Learning for Fifth Grade Elementary Students”. Journal of Educational Sciences 10, no. 1 (January 27, 2026): 2048–2059. Accessed September 19, 2026. https://jes.ejournal.unri.ac.id/index.php/JES/article/view/1325.